Heat transfer enhancement in a triangular duct using compound nanofluids and turbulators

Hamdi E. Ahmed, M. I. Ahmed, M. Z. Yusoff

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Numerical and experimental investigation is carried out to study the laminar heat transfer and fluid flow characteristics in an equilateral triangular duct using combined vortex generator and nanofluids. Two different types of nanoparticles "namely Al2O3 and SiO2" suspended in distilled water with two particles concentrations are successfully prepared and experimentally tested. Both numerical and experimental results show a good enhancement in heat transfer by using vortex generator with base fluid. A significant heat transfer enhancement is observed by using compound vortex generators and nanofluids accomplished with a moderate increase in the pressure drop. High gradient in wall temperatures is monitored when the water is replaced by nanofluid particularly at higher volume fraction. A small deviation has been seen between the present numerical and experimental results.

Original languageEnglish
Pages (from-to)191-201
Number of pages11
JournalApplied Thermal Engineering
Volume91
DOIs
Publication statusPublished - 05 Dec 2015

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Ducts
Vortex flow
Heat transfer
Gas generators
Pressure drop
Flow of fluids
Water
Volume fraction
Nanoparticles
Fluids
Temperature

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Cite this

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Heat transfer enhancement in a triangular duct using compound nanofluids and turbulators. / Ahmed, Hamdi E.; Ahmed, M. I.; Yusoff, M. Z.

In: Applied Thermal Engineering, Vol. 91, 05.12.2015, p. 191-201.

Research output: Contribution to journalArticle

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